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Autolite 458 Spark Plug
| Brand | Autolite 458 |
|---|---|
| Resistance | 1 |
| Ground Electrode Tip Design | Tapered |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Stud |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | 0.030 |
| Pre-Gap Size | 0.80 |
| Ground Electrode Quantity | 1 |
| Hex Size | 13/16" |
| Hex Size | 21 |
| Seat Type | Flat |
| Reach | 0.374 |
| Reach | 9.5 |
| Thread Diameter | 14.0 |
| Resistor Type | No |
| Center Electrode Design | Standard / regular |
| Ground Electrode Tip Material | Nickel |
| Insulator Material | Ceramic |
| Insulator Type | Short |
| Fits | — |
OE form, fit, function. A direct replacement for the original spark plug.
Copper core. Delivers quick starts, smoother acceleration, and better fuel economy.
Ceramic insulator. Helps maintain consistent ignition performance under heat.
Cross-references AMS Automotive 6014, BENDIX PREMIUM BRAKE SHOES 861 and National 1147 for the same application. See all 6.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Autolite 458 Copper Spark Plug
Autolite 458 is a copper spark plug built for quick starts, steady idle quality, and smooth acceleration. It follows OE-style form, fit, and function for a wide range of foreign and domestic vehicles, making it a practical choice for routine ignition service.
The Copper Spark Plug line focuses on dependable everyday performance with a copper center electrode, nickel-tipped electrodes, and a ceramic insulator. For drivers searching for an OE replacement spark plug for Honda Civic or similar applications, Autolite 458 offers a straightforward service part with the dimensions and terminal style needed for proper installation.
Key Features
- Copper center electrode for consistent ignition performance
- Nickel center and ground electrode tip materials
- Pre-gapped to 0.030 in. / 0.80 mm
- Flat seat design with 14.0 mm thread diameter
- 13/16 in. (21 mm) hex size for standard spark plug service tools
- Stud terminal type with 1 ohm resistance
- Short ceramic insulator and tapered ground electrode tip design
- OE-style replacement for everyday maintenance
Product Details
Autolite 458 is engineered as a standard replacement spark plug for ignition systems that call for a flat-seat, 14 mm plug with a 0.374 in. reach. The copper core supports reliable spark delivery, while the nickel electrode materials help maintain stable operation during normal driving. This part number, 458, is commonly selected for maintenance jobs where restoring starting quality, throttle response, and idle consistency matters.
This part cross-references AMS Automotive 6014 for the same application.
Common Symptoms It May Address
- Hard starting or extended cranking
- Rough idle or inconsistent combustion
- Reduced throttle response during acceleration
- Worn or fouled spark plug replacement needs
- Routine tune-up service on ignition systems
Installation Notes and Tips
Verify thread diameter, reach, seat type, and terminal style before installation. Autolite 458 uses a 0.030 in. pre-gap, but the gap should still be checked against the vehicle service specification before use. Clean the plug seat area, thread the plug by hand first, and tighten to the manufacturer’s torque specification to help prevent thread damage or sealing issues.
For fitment-focused searches, this spark plug is a direct service option for vehicles such as Honda Civic applications where the listed plug dimensions match the original equipment requirements. Always confirm the engine’s ignition specification before ordering.
Quality Assurance
Autolite supplies ignition products to the automotive aftermarket and original equipment manufacturers, and this spark plug is built to OE form, fit, and function standards for service replacement use.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| No rows match your filter. | ||||